WO1988002690A2 - Process and device for producing tubular bodies, in particular for packing tubes - Google Patents

Process and device for producing tubular bodies, in particular for packing tubes Download PDF

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Publication number
WO1988002690A2
WO1988002690A2 PCT/CH1987/000136 CH8700136W WO8802690A2 WO 1988002690 A2 WO1988002690 A2 WO 1988002690A2 CH 8700136 W CH8700136 W CH 8700136W WO 8802690 A2 WO8802690 A2 WO 8802690A2
Authority
WO
WIPO (PCT)
Prior art keywords
edges
tube
welding
band
frequency energy
Prior art date
Application number
PCT/CH1987/000136
Other languages
German (de)
English (en)
French (fr)
Other versions
WO1988002690A3 (fr
Inventor
Henry Ueberegger
Original Assignee
Kmk Karl Mägerle Lizenz Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4270167&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1988002690(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to IN715/MAS/87A priority Critical patent/IN170391B/en
Application filed by Kmk Karl Mägerle Lizenz Ag filed Critical Kmk Karl Mägerle Lizenz Ag
Priority to KR1019880700672A priority patent/KR940009903B1/ko
Publication of WO1988002690A2 publication Critical patent/WO1988002690A2/de
Priority to NO882589A priority patent/NO882589D0/no
Priority to DK323188A priority patent/DK168733B1/da
Publication of WO1988002690A3 publication Critical patent/WO1988002690A3/de

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/32—Induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/50—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using internal forming surfaces, e.g. mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83421—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types
    • B29C66/83423—Roller, cylinder or drum types; Band or belt types; Ball types band or belt types cooperating bands or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
    • B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
    • B29C66/0044—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool
    • B29C66/00441—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool movable, e.g. mounted on reels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/20—Flexible squeeze tubes, e.g. for cosmetics

Definitions

  • the invention relates to a method according to the preamble of claim 1 and a device according to the preamble of claim 8.
  • the invention has now led to the knowledge that the points that tend to peel off are formed by material pressed out of the weld seam during the welding process.
  • the outer edges of this extruded material cool prematurely due to their very small thickness and can therefore no longer weld with the adjacent material.
  • the invention is therefore based on the object of creating a method and a device of the type mentioned at the outset, in which the weld seam has no unwelded edges of pressed-out material.
  • the object is achieved according to the invention by the features specified in the characterizing parts of claims 1 and 8.
  • the longitudinal groove on the inner band lying against the seam to be welded gives the weld seam a defined shape and prevents material edges from emerging.
  • the compact weld seam ensures uniform heating of the overlapping edges of the film strip so that material spots that have cooled down prematurely are excluded.
  • the weld seam is shifted inwards, so that the outside of the tubular bodies produced has an essentially flush surface.
  • the solution according to the invention also offers the advantage that, in the case of a multilayer film strip, of which only the inner layer may come into contact with the contents of the finished packaging tube, a continuous connection of the inner layer to the weld seam is ensured if the Edge of the inner edge of the film strip is cut obliquely in cross section such that the inner layer projects beyond the other layers of the film strip. Due to the longitudinal groove in the inner band, the protruding edge area, covering the other layers, is pressed down to the inner layer of the opposite edge area.
  • the result of the solution according to the invention is a flawless weld seam of a high-quality packaging tube.
  • Preferred embodiments according to claims 2 to 4 and 9 and 10 are advantageous if the multilayer film strip has a metallic layer, preferably an aluminum layer, by induction heating of which the adjacent plastic layers are brought to welding temperature.
  • Preferred embodiments according to claims 5 to 7, 10 and 11 are advantageous during processing of a film strip that contains no metal layer or the metal layer 'is too thin to frequency energy by means of welding Hochfre ⁇ sufficient to generate heat.
  • the welding heat is transferred from the belts, which are used as welding tools, and are driven in rotation by contact with the film belt.
  • the strips used as welding tools are preferably made of steel. Heating them by means of high-frequency energy has the particular advantage that no other parts are also heated. Since these tapes preferably have a low mass, they can not only be heated up quickly to the required temperature, but they can also be cooled down quickly in order to achieve a high level of economy through a high working speed.
  • FIG. 1 shows a device for producing tubular bodies for packaging tubes, in a schematic side view
  • FIG. 2 shows a tube formation area of the device on a larger scale compared to FIG. 1,
  • FIG. 4 shows a detail according to FIG. 3.
  • the film shown schematically in FIG. 1 is fed a film tape 10 drawn off from a supply roll (not shown).
  • the film strip which consists of several layers, has an aluminum layer which is divided into at least two thermoplastics
  • Plastic layers are embedded.
  • the plastic layer to be turned towards the inside of the tube is directed upwards during feeding.
  • the film strip is continuously rolled up about an axis extending in its longitudinal direction to form a tube with overlapping edges which are welded together under the action of heat.
  • a circumferentially driven belt 12, which is arranged underneath the film web, is used to roll up the film strip.
  • the belt 12 is increasingly arched upwards at its two edges, around the film band resting on it by a lengthways above the belt 12 roll up extending mandrel.
  • the overlapping edges of the film strip 10 delimited by mutually parallel edges are pressed onto one another between an inner strip 16 and an outer strip 18.
  • the two belts 16 and 18 serve as pressing tools.
  • the inner band 16 extends along the mandrel within the tube tube to be formed up to a deflection roller 20, so that it is returned within the tube tube formed.
  • the inner band 16 Before the inner band 16 reaches the tube formation area 24 via a guide roller 22, it can be inductively preheated in its guide path by means of a device 26. Preheating is not absolutely necessary, however, since a welding device 28, which is arranged in the tube formation area 24 and which heats the aluminum foils embedded in the foil strip inductively by means of high-frequency energy, is used to generate the welding heat. The heating is measured by metering the high-frequency energy in such a way that the thermoplastic layers of the film strip are heated to a temperature suitable for welding. During the welding and afterwards, the overlapping edges of the tube formed are pressed together by the belts 16 and 18 driven all round.
  • the weld seam formed is cooled by means of a continuously driven, endless cooling belt 30, while maintaining a contact pressure against the inner belt 16.
  • the actively induced cooling allows a higher working speed.
  • direction 32 leave the longest welded and through shown separating device separated tubular body the device described, to be supplemented by attaching a tube head and attaching a closure cap.
  • FIG. 3 shows a cross section of the tube formation area 24 in a section in which the film strip has already been rolled up to the tube tube .38 by means of the belt 12.
  • the upper run 16 'of the inner band 16 is guided on the mandrel 34, while the lower run 16' 'is guided back inside the groove 36.
  • the outer band 18 is' against' itself by the resiliently arranged welding device 28 overlapping edges of the tube 38 formed.
  • FIG. 4 shows a detail from the tube formation area 24.
  • the inner band 16 has a longitudinal groove 40, which is used to shape the inward side of the tube seam of the tube tube 38.
  • the longitudinal groove 40 gives the tube seam a defined shape and prevents the overlapping edges 42 and 44 from expanding in an uncontrolled manner when pressed together by preventing the outflow of the during the Welding process melted material limited.
  • the material is a thermoplastic, in particular polyethylene, polypropylene or their copolymers. This weldable plastic forms the outer layers of the film strip formed into the tube 38.
  • the film strip can have further layers, such as a paper layer and adhesive layers for the aluminum foil.
  • the two rotating belts 16 and 18, which serve as welding tools are inductively heated to the required welding temperature by means of high-frequency energy.
  • the heating can take place in front of the tube formation area 24 (FIG. 2) or for the outer band 18 also within this area by means of correspondingly arranged heating devices.
  • the device 26 does not serve to preheat the inner band 16, but rather to completely heat this band to the temperature required for welding.
  • the outer band 18 can either in such an embodiment of the device before
  • Pipe formation area 24 (FIG. 2) or within this area by means of the device 28.
  • the rotating belts 16 and 18 are preferably made of steel, provided that they are heated inductively by means of radio frequency energy.
  • the welding heat is generated exclusively by means of the device 28 produced directly in the aluminum layer of the film strip, then the strips 16 and 18 serving as pressing tools can also consist, for example, of polytetrafluoroethylene.
  • the device 26 is not required in this case.
  • the devices 26 and 28 used for inductive heating essentially have a high-frequency coil, the energy output of which is concentrated on the area to be heated.
  • High-frequency generators of known design are used to feed these high-frequency coils.
  • a metal layer, in particular an aluminum layer, having multilayer films of the type described are known.
  • the device described is also suitable for processing a film strip which consists of only a single thermoplastic layer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Package Closures (AREA)
  • Laminated Bodies (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
PCT/CH1987/000136 1986-10-15 1987-10-07 Process and device for producing tubular bodies, in particular for packing tubes WO1988002690A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IN715/MAS/87A IN170391B (da) 1986-10-15 1987-10-06
KR1019880700672A KR940009903B1 (ko) 1986-10-15 1987-10-07 관상체의 제조방법 및 그 장치
NO882589A NO882589D0 (no) 1986-10-15 1988-06-13 Fremgangsmaate og apparat til fremstilling av roerlegemer, spesielt for emballasjetuber.
DK323188A DK168733B1 (da) 1986-10-15 1988-06-14 Fremgangsmåde og apparatat til fremstilling af rørlegemer, især til emballagetuber

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4119/86-4 1986-10-15
CH4119/86A CH670797A5 (da) 1986-10-15 1986-10-15

Publications (2)

Publication Number Publication Date
WO1988002690A2 true WO1988002690A2 (en) 1988-04-21
WO1988002690A3 WO1988002690A3 (fr) 1988-07-28

Family

ID=4270167

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1987/000136 WO1988002690A2 (en) 1986-10-15 1987-10-07 Process and device for producing tubular bodies, in particular for packing tubes

Country Status (20)

Country Link
EP (1) EP0264663B1 (da)
JP (1) JPH0622886B2 (da)
KR (1) KR940009903B1 (da)
CN (1) CN87106852A (da)
AT (1) ATE61279T1 (da)
AU (1) AU589298B2 (da)
CA (1) CA1322897C (da)
CH (1) CH670797A5 (da)
DD (1) DD266319A5 (da)
DE (1) DE3768414D1 (da)
DK (1) DK168733B1 (da)
ES (1) ES2022253B3 (da)
FI (1) FI874530A (da)
IE (1) IE872738L (da)
IN (1) IN170391B (da)
MX (1) MX169799B (da)
NO (1) NO882589D0 (da)
NZ (1) NZ222153A (da)
WO (1) WO1988002690A2 (da)
ZA (1) ZA877671B (da)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628399A2 (de) * 1993-05-07 1994-12-14 Kmk Lizence Ltd. Verfahren zur Herstellung eines rohrförmigen Hohlkörpers
CN113165277A (zh) * 2018-11-12 2021-07-23 帕克西斯全球股份公司 包装管用柔性管体、其制造方法及其制造设备

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EP0409021B1 (de) * 1989-07-21 1997-02-19 Kmk Lizence Ltd. Vorrichtung und Verfahren zur Herstellung von Rohrkörpern
DE4121427C2 (de) * 1991-06-28 1994-07-07 Maegerle Karl Lizenz Verfahren zur Herstellung einer Schweissnaht für Tubenrohre
CH683954A5 (de) * 1993-04-17 1994-06-15 Industrieorientierte Forsch Verfahren und Vorrichtung zur Herstellung von HF-Siegelverbindungen mittels eines wiederverwendbaren Wirbelstromschichtträgers.
KR200449154Y1 (ko) * 2008-07-16 2010-06-17 이창영 필름 접합장치
DE102011008068A1 (de) * 2011-01-07 2012-07-12 Packsys Global (Switzerland) Ltd. Vorrichtung und Verfahren zur Herstellung von Tubenrohren für Verpackungstuben
DE102011051108A1 (de) * 2011-06-16 2012-12-20 Packsys Global (Switzerland) Ltd. Verfahren zum Herstellen von Rohrkörpern für Verpackungstuben sowie Verpackungstube mit Rohrkörper
GB2510340B (en) * 2013-01-30 2017-12-06 Rtl Mat Ltd Apparatus and method for manufacturing a composite product from plural components
EP2829381A1 (de) * 2013-07-25 2015-01-28 PackSys Global (Switzerland) Ltd. Schweißvorrichtung zum Herstellen von Tubenkörpern
BR112021023773A2 (pt) * 2019-07-19 2022-01-25 Aisapack Holding Sa Dispositivo de acionamento de atrito reduzido
US11072467B2 (en) * 2019-09-20 2021-07-27 Klecher, Llc Integrated squeezable containers and manufacture thereof

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GB559657A (en) * 1942-08-25 1944-02-29 William John Jarrard Improvements in the welding of thermoplastic bodies
US2741296A (en) * 1953-04-20 1956-04-10 William F Stahl Apparatus for heat-sealing overlapping surfaces of plastic material
FR1166776A (fr) * 1957-02-15 1958-11-14 Procédé et dispositif pour la réalisation de soudures longitudinales dans des matériaux thermo-soudables
DE1053774B (de) * 1954-07-05 1959-03-26 Windmoeller & Hoelscher Vorrichtung zum Verschweissen der laengsverlaufenden UEberlappungsnaht eines aus thermoplastischem Kunststoff bestehenden Rohres oder Schlauches
GB1045279A (en) * 1962-10-10 1966-10-12 Tannoid Ltd Improvements in or relating to methods of joining strip material
US3367261A (en) * 1965-08-16 1968-02-06 Kashiwagi Kimifumi Apparatus for continuous heat-sealing of thermoplastic sheets
FR1518369A (fr) * 1966-04-15 1968-03-22 Keller Roehren Ag Procédé pour assembler par soudage des pièces en matière thermoplastique
GB1220099A (en) * 1968-03-27 1971-01-20 American Can Co Tube side seaming apparatus
DE2008085A1 (en) * 1970-02-21 1971-09-16 Spiess C F & Sohn Laminated tubing material
FR2176558A1 (da) * 1972-03-23 1973-11-02 Tuboplast France
US3952676A (en) * 1972-11-24 1976-04-27 Colgate-Palmolive Company Dispensing container manufacturing apparatus and methods
FR2365426A1 (fr) * 1976-09-24 1978-04-21 Automation Industrielle Sa Installation pour la production de capsules ou recipients deformables
GB2024097A (en) * 1978-06-30 1980-01-09 American Can Co Tube forming method and apparatus
EP0058245A1 (de) * 1981-02-12 1982-08-25 Automation Industrielle SA Verfahren und Vorrichtung zur kontinuierlichen Herstellung von endlosen verformbaren Rohren aus einem Laminatfolienband
EP0177470A2 (en) * 1984-10-02 1986-04-09 AB AKERLUND & RAUSING A tube and a method and a device for manufacturing of the tube

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US3388017A (en) 1963-12-18 1968-06-11 American Can Co Tube making method and apparatus

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB559657A (en) * 1942-08-25 1944-02-29 William John Jarrard Improvements in the welding of thermoplastic bodies
US2741296A (en) * 1953-04-20 1956-04-10 William F Stahl Apparatus for heat-sealing overlapping surfaces of plastic material
DE1053774B (de) * 1954-07-05 1959-03-26 Windmoeller & Hoelscher Vorrichtung zum Verschweissen der laengsverlaufenden UEberlappungsnaht eines aus thermoplastischem Kunststoff bestehenden Rohres oder Schlauches
FR1166776A (fr) * 1957-02-15 1958-11-14 Procédé et dispositif pour la réalisation de soudures longitudinales dans des matériaux thermo-soudables
GB1045279A (en) * 1962-10-10 1966-10-12 Tannoid Ltd Improvements in or relating to methods of joining strip material
US3367261A (en) * 1965-08-16 1968-02-06 Kashiwagi Kimifumi Apparatus for continuous heat-sealing of thermoplastic sheets
FR1518369A (fr) * 1966-04-15 1968-03-22 Keller Roehren Ag Procédé pour assembler par soudage des pièces en matière thermoplastique
GB1220099A (en) * 1968-03-27 1971-01-20 American Can Co Tube side seaming apparatus
DE2008085A1 (en) * 1970-02-21 1971-09-16 Spiess C F & Sohn Laminated tubing material
FR2176558A1 (da) * 1972-03-23 1973-11-02 Tuboplast France
US3952676A (en) * 1972-11-24 1976-04-27 Colgate-Palmolive Company Dispensing container manufacturing apparatus and methods
FR2365426A1 (fr) * 1976-09-24 1978-04-21 Automation Industrielle Sa Installation pour la production de capsules ou recipients deformables
GB2024097A (en) * 1978-06-30 1980-01-09 American Can Co Tube forming method and apparatus
EP0058245A1 (de) * 1981-02-12 1982-08-25 Automation Industrielle SA Verfahren und Vorrichtung zur kontinuierlichen Herstellung von endlosen verformbaren Rohren aus einem Laminatfolienband
EP0177470A2 (en) * 1984-10-02 1986-04-09 AB AKERLUND & RAUSING A tube and a method and a device for manufacturing of the tube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628399A2 (de) * 1993-05-07 1994-12-14 Kmk Lizence Ltd. Verfahren zur Herstellung eines rohrförmigen Hohlkörpers
EP0628399A3 (de) * 1993-05-07 1996-06-12 Maegerle Karl Lizenz Verfahren zur Herstellung eines rohrförmigen Hohlkörpers.
CN113165277A (zh) * 2018-11-12 2021-07-23 帕克西斯全球股份公司 包装管用柔性管体、其制造方法及其制造设备
CN113165277B (zh) * 2018-11-12 2023-07-21 帕克西斯全球股份公司 包装管用柔性管体、其制造方法及其制造设备

Also Published As

Publication number Publication date
MX169799B (es) 1993-07-27
IE872738L (en) 1988-04-15
JPS6398416A (ja) 1988-04-28
DD266319A5 (de) 1989-03-29
KR890700075A (ko) 1989-03-02
DK323188D0 (da) 1988-06-14
FI874530A0 (fi) 1987-10-14
CH670797A5 (da) 1989-07-14
JPH0622886B2 (ja) 1994-03-30
CA1322897C (en) 1993-10-12
IN170391B (da) 1992-03-21
EP0264663A3 (en) 1988-09-14
WO1988002690A3 (fr) 1988-07-28
EP0264663B1 (de) 1991-03-06
EP0264663A2 (de) 1988-04-27
NO882589L (no) 1988-06-13
DK323188A (da) 1988-08-12
ATE61279T1 (de) 1991-03-15
ES2022253B3 (es) 1991-12-01
AU8028187A (en) 1988-05-06
FI874530A (fi) 1988-04-16
AU589298B2 (en) 1989-10-05
DE3768414D1 (de) 1991-04-11
CN87106852A (zh) 1988-05-04
NZ222153A (en) 1989-08-29
NO882589D0 (no) 1988-06-13
ZA877671B (en) 1988-04-19
KR940009903B1 (ko) 1994-10-18
DK168733B1 (da) 1994-05-30

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